- 29 Nov, 2016 4 commits
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Chris Wilson authored
The fb_helper->connector_count is modified when a new connector is constructed following a hotplug event (e.g. DP-MST). This causes trouble for drm_setup_crtcs() and friends that assume that fb_helper is constant: [ 1250.872997] BUG: KASAN: slab-out-of-bounds in drm_setup_crtcs+0x320/0xf80 at addr ffff88074cdd2608 [ 1250.873020] Write of size 40 by task kworker/u8:3/480 [ 1250.873039] CPU: 2 PID: 480 Comm: kworker/u8:3 Tainted: G U 4.9.0-rc6+ #285 [ 1250.873043] Hardware name: /NUC6i3SYB, BIOS SYSKLi35.86A.0024.2015.1027.2142 10/27/2015 [ 1250.873050] Workqueue: events_unbound async_run_entry_fn [ 1250.873056] ffff88070f9d78f0 ffffffff814b72aa ffff88074e40c5c0 ffff88074cdd2608 [ 1250.873067] ffff88070f9d7918 ffffffff8124ff3c ffff88070f9d79b0 ffff88074cdd2600 [ 1250.873079] ffff88074e40c5c0 ffff88070f9d79a0 ffffffff812501e4 0000000000000005 [ 1250.873090] Call Trace: [ 1250.873099] [<ffffffff814b72aa>] dump_stack+0x67/0x9d [ 1250.873106] [<ffffffff8124ff3c>] kasan_object_err+0x1c/0x70 [ 1250.873113] [<ffffffff812501e4>] kasan_report_error+0x204/0x4f0 [ 1250.873120] [<ffffffff81698df0>] ? drm_dev_printk+0x140/0x140 [ 1250.873127] [<ffffffff81250ac3>] kasan_report+0x53/0x60 [ 1250.873134] [<ffffffff81688b40>] ? drm_setup_crtcs+0x320/0xf80 [ 1250.873142] [<ffffffff8124f18e>] check_memory_region+0x13e/0x1a0 [ 1250.873147] [<ffffffff8124f5f3>] memset+0x23/0x40 [ 1250.873154] [<ffffffff81688b40>] drm_setup_crtcs+0x320/0xf80 [ 1250.873161] [<ffffffff810be7c5>] ? wake_up_q+0x45/0x80 [ 1250.873169] [<ffffffff81b0c180>] ? mutex_lock_nested+0x5a0/0x5a0 [ 1250.873176] [<ffffffff8168a0e6>] drm_fb_helper_initial_config+0x206/0x7a0 [ 1250.873183] [<ffffffff81689ee0>] ? drm_fb_helper_set_par+0x90/0x90 [ 1250.873303] [<ffffffffa0b68690>] ? intel_fbdev_fini+0x140/0x140 [i915] [ 1250.873387] [<ffffffffa0b686b2>] intel_fbdev_initial_config+0x22/0x40 [i915] [ 1250.873391] [<ffffffff810b50ff>] async_run_entry_fn+0x7f/0x270 [ 1250.873394] [<ffffffff810a64b0>] process_one_work+0x3d0/0x960 [ 1250.873398] [<ffffffff810a641d>] ? process_one_work+0x33d/0x960 [ 1250.873401] [<ffffffff810a60e0>] ? max_active_store+0xf0/0xf0 [ 1250.873406] [<ffffffff810f6f9d>] ? do_raw_spin_lock+0x10d/0x1a0 [ 1250.873413] [<ffffffff810a767d>] worker_thread+0x8d/0x840 [ 1250.873419] [<ffffffff810a75f0>] ? create_worker+0x2e0/0x2e0 [ 1250.873426] [<ffffffff810b0454>] kthread+0x194/0x1c0 [ 1250.873432] [<ffffffff810b02c0>] ? kthread_park+0x60/0x60 [ 1250.873438] [<ffffffff810f095d>] ? trace_hardirqs_on+0xd/0x10 [ 1250.873446] [<ffffffff810b02c0>] ? kthread_park+0x60/0x60 [ 1250.873453] [<ffffffff810b02c0>] ? kthread_park+0x60/0x60 [ 1250.873457] [<ffffffff81b12277>] ret_from_fork+0x27/0x40 [ 1250.873460] Object at ffff88074cdd2608, in cache kmalloc-32 size: 32 However, when holding the mode_config.lock around the fb_helper, we have to be careful of any callbacks that may reenter the fb_helper and so try to reacquire the mode_config.lock (e.g. register_framebuffer). To avoid the mutex recursion, we have to rearrange the sequence to move the registration into the caller outside of the mode_config.lock. v2: drop the 1; following the lockdep assertion inside the for(;;), I anticipated an error that doesn't happen! Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98826Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by:
Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20161129120217.7344-1-chris@chris-wilson.co.uk
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Chris Wilson authored
In a couple of places currently, and with the intent to add more, we update a pointer to a framebuffer to hold a new fb reference (evicting the old). Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161125153231.13255-2-chris@chris-wilson.co.uk
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Srinivas Kandagatla authored
This patch enables the Audio Data and Clock pads to the adv7533 bridge. Without this patch audio can not be played. Cc: David Airlie <airlied@linux.ie> Cc: Archit Taneja <architt@codeaurora.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Wolfram Sang <wsa+renesas@sang-engineering.com> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Andy Green <andy@warmcat.com> Cc: Dave Long <dave.long@linaro.org> Cc: Guodong Xu <guodong.xu@linaro.org> Cc: Zhangfei Gao <zhangfei.gao@linaro.org> Cc: Mark Brown <broonie@kernel.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Jose Abreu <joabreu@synopsys.com> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
John Stultz <john.stultz@linaro.org> Signed-off-by:
Archit Taneja <architt@codeaurora.org> Link: http://patchwork.freedesktop.org/patch/msgid/1480382552-28219-3-git-send-email-john.stultz@linaro.org
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John Stultz authored
This patch adds support to Audio for both adv7511 and adv7533 bridge chips. This patch was originally from [1] by Lars-Peter Clausen <lars@metafoo.de> and was adapted by Archit Taneja <architt@codeaurora.org> and Srinivas Kandagatla <srinivas.kandagatla@linaro.org>. Then I heavily reworked it to use the hdmi-codec driver. And also folded in some audio packet initialization done by Andy Green <andy.green@linaro.org>. So credit to them, but blame to me. [1] https://github.com/analogdevicesinc/linux/blob/xcomm_zynq/drivers/gpu/drm/i2c/adv7511_audio.c Cc: David Airlie <airlied@linux.ie> Cc: Archit Taneja <architt@codeaurora.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Wolfram Sang <wsa+renesas@sang-engineering.com> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Andy Green <andy@warmcat.com> Cc: Dave Long <dave.long@linaro.org> Cc: Guodong Xu <guodong.xu@linaro.org> Cc: Zhangfei Gao <zhangfei.gao@linaro.org> Cc: Mark Brown <broonie@kernel.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Jose Abreu <joabreu@synopsys.com> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: dri-devel@lists.freedesktop.org Acked-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
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- 28 Nov, 2016 7 commits
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Ville Syrjälä authored
CEA-861 specifies that the vertical front porch may vary by one or two lines for specific VICs. Up to now we've only considered a mode to match the VIC if it matched the shortest possible vertical front porch length (as that is the variant we store in cea_modes[]). Let's allow our VIC matching to work with the other timings variants as well so that that we'll send out the correct VIC if the variant actually used isn't the one with the shortest vertical front porch. Cc: Shashank Sharma <shashank.sharma@intel.com> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Adam Jackson <ajax@redhat.com> Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1478177609-16762-2-git-send-email-ville.syrjala@linux.intel.comReviewed-by:
Andrzej Hajda <a.hajda@samsung.com>
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Ville Syrjälä authored
drm_atomic_crtc_needs_modeset() doesn't change the passed in crtc state, so pass it as const. Signed-off-by:
Jani Nikula <jani.nikula@intel.com>
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Arnd Bergmann authored
The newly added sound driver depends on SND_SOC_HDMI_CODEC, which in turn only makes sense when ASoC is enabled, as shown by this warning: warning: (DRM_MSM && DRM_STI && DRM_MEDIATEK_HDMI && DRM_I2C_NXP_TDA998X && DRM_DW_HDMI_I2S_AUDIO) selects SND_SOC_HDMI_CODEC which has unmet direct dependencies (SOUND && !M68K && !UML && SND && SND_SOC) Since the audio driver is probably useless without the audio subsystem, adding a dependency here seems the right solution. Fixes: 2761ba6c ("drm: bridge: add DesignWare HDMI I2S audio support") Acked-by:
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Chris Wilson authored
smatch correctly warns: drivers/gpu/drm/drm_fb_helper.c:1960 drm_target_preferred() warn: should '1 << i' be a 64 bit type? drivers/gpu/drm/drm_fb_helper.c:2001 drm_target_preferred() warn: should '1 << i' be a 64 bit type? Signed-off-by:
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Chris Wilson authored
smatch warns: drivers/gpu/drm/drm_lock.c:188 drm_legacy_lock() warn: variable dereferenced before check 'master->lock.hw_lock' (see line 177) Signed-off-by:
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Chris Wilson authored
Remove the ugly sparse casts by using the helper u64_to_user_ptr() instead. Signed-off-by:
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Chris Wilson authored
start is being used as both a macro parameter and as a member of struct drm_mm_node (node->start). This causes a conflict as cpp then tries to replace node->start with the passed in string for "start". Work just fine so long as you also happened to using local variables called start! Fixes: 522e85dd ("drm: Define drm_mm_for_each_node_in_range()") Signed-off-by:
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- 25 Nov, 2016 4 commits
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Chris Wilson authored
Silences ./include/drm/drm_drv.h:295: warning: Incorrect use of kernel-doc format Signed-off-by:
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Arnd Bergmann authored
When CONFIG_PM_SLEEP is disabled, we get a harmless warning drm/hisilicon/hibmc/hibmc_drm_drv.c:115:12: error: ‘hibmc_pm_resume’ defined but not used [-Werror=unused-function] drm/hisilicon/hibmc/hibmc_drm_drv.c:97:12: error: ‘hibmc_pm_suspend’ defined but not used [-Werror=unused-function] Marking the functions as __maybe_unused avoids the warning without having to add an #ifdef. Fixes: 5e0df3a0 ("drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver") Signed-off-by:
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Dan Carpenter authored
The drm_dev_alloc() function returns error pointers. It never returns NULLs. Fixes: 5e0df3a0 ("drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Daniel Vetter authored
Pull in the hibmc driver stuff so I can apply 2 trivial fixups from Dan&Arnd. Signed-off-by:Daniel Vetter <daniel.vetter@intel.com>
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- 24 Nov, 2016 4 commits
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Kuninori Morimoto authored
Current dw-hdmi is supporting sound via AHB bus, but it has I2S audio feature too. This patch adds I2S audio support to dw-hdmi. This HDMI I2S is supported by using ALSA SoC common HDMI encoder driver. Tested-by:
Jose Abreu <joabreu@synopsys.com> Acked-by:
Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by:
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Chris Wilson authored
Use the color_adjust callback when reserving a node to check if inserting a node into this hole requires any additional space, and so if that space then conflicts with an existing allocation. Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by:
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Chris Wilson authored
Some clients would like to iterate over every node within a certain range. Make a nice little macro for them to hide the mixing of the rbtree search and linear walk. v2: Blurb Signed-off-by:
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Daniel Vetter authored
One of the functions was missing () to make the autolinks work, unfortunately copy-pasted a few times all over. Cc: Manasi Navare <manasi.d.navare@intel.com> Reviewed-by:
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- 23 Nov, 2016 1 commit
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Daniel Vetter authored
Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Acked-by:
Jani Nikula <jani.nikula@linux.intel.com> Acked-by:
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- 22 Nov, 2016 3 commits
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Arnd Bergmann authored
We now pass the device to the debug messages, but on non-x86, this is an invalid pointer in vga_arb_device_init: drivers/gpu/vga/vgaarb.c: In function 'vga_arb_device_init': drivers/gpu/vga/vgaarb.c:1467:4: error: 'dev' may be used uninitialized in this function [-Werror=maybe-uninitialized] This moves the initialization of the dev pointer outside of the architecture #ifdef. Fixes: a75d68f6 ("vgaarb: Use dev_printk() when possible") Signed-off-by:
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Daniel Vetter authored
I totally butcherd the job on typing the kernel-doc for these, and no one realized. Noticed by Russell. Maarten has a more complete approach to this confusion, by making it more explicit what the new/old state is, instead of this magic switching behaviour. v2: - Liviu pointed out that wait_for_fences is even more magic. Leave that as @state, and document @pre_swap better. - While at it, patch in header for the reference section. - Fix spelling issues Russell noticed. v3: Fix up the @pre_swap note (Liviu): Also s/synchronous/blocking/, since async flip is something else than non-blocking. Cc: Liviu Dudau <liviu.dudau@arm.com> Reported-by:
Russell King - ARM Linux <linux@armlinux.org.uk> Cc: Russell King - ARM Linux <linux@armlinux.org.uk> Fixes: 9f2a7950 ("drm/atomic-helper: nonblocking commit support") Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tomeu Vizoso <tomeu.vizoso@gmail.com> Cc: Daniel Stone <daniels@collabora.com> Reviewed-by:
Liviu Dudau <liviu.dudau@arm.com> Signed-off-by:
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Gustavo Padovan authored
Document IN_FENCE_FD and OUT_FENCE_PTR properties. v2: incorporate comments from Daniel Vetter Signed-off-by:
Gustavo Padovan <gustavo.padovan@collabora.co.uk> [danvet: s/async/nonblocking/ atomic commits.] Signed-off-by:
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- 21 Nov, 2016 2 commits
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Liviu Dudau authored
Cleanup the debugfs entries created by commit 6559c901: drm/atomic: add debugfs file to dump out atomic state when the driver's minor gets un-registered. Without it, DRM drivers compiled as modules cannot be rmmod-ed and modprobed again. Tested-by:
Brian Starkey <brian.starkey@arm.com> Signed-off-by:
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http://github.com/zourongrong/linuxDave Airlie authored
hibmc drm driver for hisilicon. * tag 'drm-hisilicon-next-2016-11-17' of http://github.com/zourongrong/linux: MAINTAINERS: Update HISILICON DRM entries drm/hisilicon/hibmc: Add support for vblank interrupt drm/hisilicon/hibmc: Add support for VDAC drm/hisilicon/hibmc: Add support for display engine drm/hisilicon/hibmc: Add support for frame buffer drm/hisilicon/hibmc: Add video memory management drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver
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- 18 Nov, 2016 4 commits
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Bjorn Helgaas authored
To avoid userspace-triggerable dmesg spam, downgrade messages in the sysfs write parsing code to debug level. Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Signed-off-by:
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Bjorn Helgaas authored
Use dev_printk() when possible. This makes messages more consistent with other device-related messages and, in some cases, adds useful information. This changes messages like this: vgaarb: failed to allocate pci device vgaarb: setting as boot device: PCI:0000:01:00.0 vgaarb: device added: PCI:0000:01:00.0,decodes=io+mem,owns=io+mem,locks=none vgaarb: bridge control possible 0000:01:00.0 to this: pci 0000:01:00.0: vgaarb: failed to allocate VGA arbiter data pci 0000:01:00.0: vgaarb: setting as boot VGA device pci 0000:01:00.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none pci 0000:01:00.0: vgaarb: bridge control possible No functional change intended. Signed-off-by:
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Gustavo Padovan authored
This reverts commit ecebca79. Do not enable fence callback on poll() when using fence_array causes the fence_array to not signal. For now we will revert the change and enable signaling everytime time poll is called with timeout=0 as well. Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Daniel Vetter authored
There's a really big pile of additional connector properties, a lot of them standardized. But they're all for specific outputs (panels, TV, scaling, ...) so I left them out for now since this is enough for a start. I typed this to give Manasi a place to add her new link status property documentation. v2: forgot to git add all the bits (Manasi). v3: Be more epxlicit about integrated tiled panels (Archit) Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Archit Taneja <architt@codeaurora.org> Reviewed-by:
Manasi Navare <manasi.d.navare@intel.com> Signed-off-by:
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- 17 Nov, 2016 11 commits
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Jani Nikula authored
We've overlooked adding DSI panels to the front of the connector list. This seems to be the right thing to do, and I suspect this might fix some issues, although I currently have no evidence to support this. v2: also git add the comment change Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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Ville Syrjälä authored
It has been suggested that having per-plane modifiers is making life more difficult for userspace, so let's just retire modifier[1-3] and use modifier[0] to apply to the entire framebuffer. Obviosuly this means that if individual planes need different tiling layouts and whatnot we will need a new modifier for each combination of planes with different tiling layouts. For a bit of extra backwards compatilbilty the kernel will allow non-zero modifier[1+] but it require that they will match modifier[0]. This in case there's existing userspace out there that sets modifier[1+] to something non-zero with planar formats. Mostly a cocci job, with a bit of manual stuff mixed in. @@ struct drm_framebuffer *fb; expression E; @@ - fb->modifier[E] + fb->modifier @@ struct drm_framebuffer fb; expression E; @@ - fb.modifier[E] + fb.modifier Cc: Kristian Høgsberg <hoegsberg@gmail.com> Cc: Ben Widawsky <benjamin.widawsky@intel.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Tomeu Vizoso <tomeu@tomeuvizoso.net> Cc: dczaplejewicz@collabora.co.uk Suggested-by:
Kristian Høgsberg <hoegsberg@gmail.com> Acked-by:
Ben Widawsky <ben@bwidawsk.net> Acked-by:
Daniel Stone <daniels@collabora.com> Acked-by:
Rob Clark <robdclark@gmail.com> Signed-off-by:
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Daniel Vetter authored
Sumit still takes care about dma-buf, but we've merged the trees together since way too much overlap. And Gustavo is also part of the drm-misc team to be able to help out. Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Gustavo Padovan <gustavo@padovan.org> Acked-by:
Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by:
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Chen-Yu Tsai authored
Some dumb VGA DACs are active components which require external power. Add support for specifying a regulator as its power supply. Signed-off-by:
Chen-Yu Tsai <wens@csie.org> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Daniel Vetter authored
Again something that's in the drm-misc fold. Cc: Archit Taneja <architt@codeaurora.org> Acked-by:
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Daniel Vetter authored
KS happened, time to make this official! Well, scripting work to make this all happen is still ongoing, but I'm trying to at least keep the new tree semi-in-sync with the temporary topic/drm-misc branch in the drm-intel.git repo. So for now still no new committers, and existing ones still need to push to topic/drm-misc in drm-intel.git. Big kudos to Jani&Sean for volunteering as co-maintainers! v2: Restrict patterns a bit to avoid all the driver spam. Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Acked-by:
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Daniel Vetter authored
Looking at the ioctl permission checks I noticed that it's impossible to import gem buffers into a control nodes, and fd2handle/handle2fd also don't work, so no joy with dma-bufs. The only way to do anything with a control node is by drawing stuff into a dumb buffer and displaying that. I suspect control nodes are an entirely unused thing, and a cursory check shows that there does not seem to be any callers of drmOpenControl nor of the other drmOpen functions using DRM_MODE_CONTROL. Since I don't like dead uabi, let's remove it. But since this would be a really big change I think it's better to start out small by simply not registering anything. We can garbage-collect the dead code later on, once we're sure it's really not used anywhere. Acked-by:
Dave Airlie <airlied@gmail.com> Signed-off-by:
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Rongrong Zou authored
Signed-off-by:
Rongrong Zou <zourongrong@gmail.com> Reviewed-by:
Xinliang Liu <xinliang.liu@linaro.org> Acked-by:
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Rongrong Zou authored
Add vblank interrupt. Signed-off-by:
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Rongrong Zou authored
VDAC(Video Digital-to-Analog converter) converts the RGB diaital data stream from DE to VGA analog signals. Signed-off-by:
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Rongrong Zou authored
Add display engine function, crtc/plane is initialized here. Signed-off-by:
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